DURABILITY: Diamonds are known for their durability. However, moissanite doesn't fall far behind. “Moissanite is the second hardest to diamonds on the Mohs hardness scale,” O'Connell says. “Based on rankings from one to 10, diamonds are a 10 and moissanite is a 9.25-9.5.” BRILLIANT: Moissanite has over twice the dispersion value of a diamond, which means that it has a greater fire (or display of spectral colors) that is visible when you rotate the stone. CUTTING: Because moissanite is double refractive, it is cut differently than diamonds to enhance the sparkle. COLOR: We have been perfecting the creation process over time, and you can now get high-quality moissanite that is colorless. Diamond color, however, can vary greatly.